Cement brickmaking machine



March z5 1924. y l 1,487,812l

H. SCHREIER if CEMENT BRI'CKMAKING MACHINE Filed Dec. l2, 1922 2 Sheets-Sheet 1 .Hrmazz 55h-*HEP* ow .f

Marchas, 1924. mmm

H. SCHREIER CEMENT BRICKMAKING MACHINE Filed Dec. 12 1922 2 Sheets-heet 2 Hefmafz 5P Patented Mar. 25, 1924.

HERMAN SCHREIER, OF SHEBOYGAN, WISCONSIN.

application mea December 12, 1922. serial No. `606,421.

To all whom it may concern:

Beit known that I, HERMAN. SGHREIER, a citizen of the United States, 'and resident of Sheboyganin the county of Sheboygan such changes in the precise embodiment of and State of lNisconsin, have Vinvented certain new and use ful Improvementsin Cement Brickmaking Machines; and I do hereby declare that thev following is a full, clear, and exact descriptionfthereofQ The invention relates .to a process and apparatus for making cementbricks. Sand and cement are mixed together and'suitably moistened andfed downwardly on thetop of a moulding wheel provided withaplu- Vrality of moulds. 'A compressionwheelis provided cooperating with the-moulding wheel and forcing the cement into the moulds from which it is ejectedin the, Iform of bricks. A v

It is the object of the inventiontoprovide a process and apparatus for producingcement bricks of such nature that the process is carried out automatically and in a rapid manner so that a maximum lof out-put is had in a minimum of time, the method calling for but little expenditure of labor. The operation is substantially automatic,- from the' time of introduction of thesand and cement to the emanation of the. moulded brick. The mixing of materials is automatic and the formation of vbricks in the moulding wheel is automatic and carried out with great rapidity.

An object of the invention is the provision of means especially eiicient in the moulding of bricks. A compression wheel is provided which forces the material into the moulds, whence it is ejected by plungers. The action of thecompression wheel is such as to force the material into every portion of the mould and a well formed brick results.

The object of the invention is the provision of moulding means which are especially simple in construction and operation. A series of moulds is disposed on the periphery of the moulding wheel and a plunger is actuated in each mould through the medium of an ejector rod contacting with an idle wheel. T he plunger is actuated in a positive manner and the brick is ejected without breakage or malformation. the retraction of the plunger-s.

With the above and other objects in view1 which will appear as the description proceeds, the invention resides in the novel ligu're v elevation illustrating the ynovel process and ,mechanism part A.of the mould hopper be- Additional wheels are provided forv of parts, substantially as hereinafter de- A scribed and more particularly defined by the appended claims, it being understood that the herein disclosed invention may be made as comewithin the scope of the claims and in the ldescribed and defined novel processes I In the accompanying drawing is illustrated-one complete example of the physical embodiment of the machine of the present invention .constructed accordingto the best V Inode so far4 devised for the practical ap- -plication of the principles thereof, and in 5 which:4

1 is a diagrammatic lview in side ing shown in'section.l

v lFigu'res 2 and 3 are sections on: the lines l2 -2 and 3 3,y respectively, of Figure 1,

and

b Figure 4 isa detail of a sector of the Vmoulding wheel:

Cement is deposited through the hopper 10 into feed cylinder 11 through which it is forced by means of vworm 12 operated by a suitable belt on the pulley 13, and sand is deposited through hopper 14 into vfeedcylinder 15 through which it is forced bv means of worin 16 operated by pulley 17 on which rides a suitable belt. The sand `and cement are deposited from cylinders 15 and 11 at adjacent ends in the cylinders,

`conveyed by chute 20 into mixer 21, which may be of any desired type, and thence the substance is fed to chute 22whence it is deposited into feed cylinder 23. The mixer 21 may receive the mixing power in any desired way, as through shaft 24, which is provided with a gear 25 adapted to actuate the gear 26 on shaft 27 for rotating worm 28 in feed cylinder 23. The worm 28 and the action of gravity results in the forcing of the mixed cement downwardly upon the upper surface of mould wheel 29 which co" operates with a compression wheel 30, a. hopper 31 being provided which overlies adjacent upper portions of the wheels and prevents the cement from falling off the wheels containing a supply of the mate rial for feeding into the moulds.

' vided for plunger lejector Wheels 47-47,

The moulding Wheel comprises a hub 132 rotating on ashaft 33 rotatably mounted on support 34. Support 34 is shown in Figure l. A similar support is provided for the other side of the wheel, (not shown.) From hub 32 radial spokes 35 extend'to cylinder 36, from which flanges 37-37 are outwardly directed. Disposed between the flanges and secured thereto by screws 38-38 are a series of pairs of moulds, the mould farther removed from the observer in Figure 1 being indicated by reference character 39, the nearer mould being indicated by reference character 39. .If desired, only a series of single moulds may be provided, or the nu1nber may be increased vin excess of two. This construction provides individually remov-4 able moulds so that when one mouldV becomes Worn it may be removed Without disturbing other portions of the'mould Wheel.

In mould 39 a plunger 40 is rcciprocable and aplunger 40"is similarly reciprocable in. mould A39,the plunger rod 4l being pro- 40 and a plunger rod ,41' The plungerrodsare rigid bar 42 extending transfor plunger 40. with an ejector f versely and beyond ,the flanges 37437. A 'series of radial slots 43` are .provided in flange 37 of ejector, bars 42 and' a series of similar slots 43 are provided in flange 37 for. the

reception of theother ends of the bars.vv

The compression wheel comprises .hub 44,

spokes 4.5, cylinder 46 andbordering flanges on either side of. the cylinder. The flanges 55 are fitted so as to lie close to the Walls of moulds 39-39 and on the rotation of the mould wheel, the material which has been deposited in the moulds by the action of feed cylinder 28 is compressed therein by cylinder 46, the tivo Wheels rotating in op posite directions. The cement bricks are thus formed in the moulds, the compressing action being such as to force the material into every portion thereof.

`When the bricks thus forined reach the lowermost point of travel of the mould wheel, theends of ejector bar 42 encounter rotating on shaft 48.-48 carried by suitable supports 49-49- The ends of the bars are moved outwardly in slots 43-43 and plungers 40-40 are for the recepti'onof adjacent ends thus operated to eject the bricks which are deposited on endless conveyor 50 riding on a roller 51. The further rotation of the Wheel carries the moulds to retraction Wheels 52-52 rotating on shaft 53-53 carried by suitable supports 54-54. The action of retraction wheels 52-52 is to move the ejector bars towards shaft 33, the movement of the bars being limited by the dimension of the slots 43-43.

After passing retraction wheels S2-.52', the moulds are in condition for 'receiving material from feed cylinder 23.`

Claims l.' A mould Wheel comprising a cylinder, a pair of flanges outwardlydirected therefrom, said flanges having radial'slots therein, a series'of moulds having radial bores therein,"'a"plunger in each of said moulds,`

a plunger rod oneach of said plungers, an ejector bar secured to saidplunger rods, ne end of vsaid ejector bar extending throughfa slot in one of said flanges,.the'other end of salidejector. bar extending throughjthe" slotl said pockets and 'having rods projecting inwardly of said mould Wheel, a bar extending transversely through said mould Wlieel, a pair of rotary cam members adapted to contact with the ends of said bars to force said bars towards the periphery of said mould Wheel, a pair of rotary cam members adapted to contact with ,the ends of said'bars to forcev said bars towards the axis of saidy mould Wheel, and a compression wheer-cooperating with said mould Wheel for forcing material into said mould Wheel. i In testimony that I claim the foregoing I have hereunto set my hand atMilWaukee, in the county of Milwaukee and State 'of Wisconsin. Y HERMAN SCHRElliIR.v

and means cooperating ',ivi'th lsaid 

